Elizabeth Marnix, PSYD, HSPP
Elizabeth Marnix, PSYD, HSPP is a Clinical Psychologist in Austin, TX, registered under NPI 1003231135.
Getting there
Here is what surrounds this office in Austin, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.46 mi away. There is EV charging 0.48 mi from the office (PIE AE PUBCENTRALMKTN) — useful if you are driving in from out of town. The nearest transit stop is 753 ft away, served by 3513 Jefferson/35th. A pharmacy sits 0.46 mi from the entrance (Peoples Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Restaurant Subway 239 ft ~1 min
Transit 35th/Crawford 391 ft ~2 min
Restaurant Kerbey Lane Cafe 546 ft ~3 min
Transit 1512 35th/Kerbey 576 ft ~3 min
Transit 3513 Jefferson/35th 753 ft ~3 min
Restaurant Olive & June 824 ft ~4 min
3411 Glenview Avenue, Austin 78703
Tu-Sa 17:00-21:00 open "dining in and takeaway"; Su 16:00-20:00 open "takeaway"
Coffee Teo's Gelato and Espresso 0.24 mi ~5 min
Parking Austin Medical Center Patient Visitor Parking 0.38 mi ~8 min
1015 West 37th Street, Austin 78705
Gas station Valero 0.42 mi ~9 min
North Lamar Boulevard, Austin
Coffee 34th St Cafe 0.43 mi ~9 min
Parking Midtown Medical Parking Garage 0.45 mi ~10 min
901 West 38th Street
Parking 0.46 mi ~10 min
3207 Medical Parkway
Pharmacy Peoples Pharmacy 0.46 mi ~10 min
EV charging PIE AE PUBCENTRALMKTN 0.48 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 071008714 | IL | Clinical Psychologist |
| 20042743A | IN | Clinical Psychologist |
| 38042 | TX | Clinical Psychologist primary |
Licences are recorded in 3 states: IL, IN, TX. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 3 states
This provider holds licences in 3 states: Illinois, Indiana and Texas. The practice address on file is in Austin, TX, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Clinical covers
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. NUCC Health Care Provider Taxonomy, code 103TC0700X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist Clinical | 071008714 | IL | |
| 103TC0700X | Clinical Psychologist Clinical | 20042743A | IN | |
| 103TC0700X | Clinical Psychologist Clinical | 38042 | TX | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003231135 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 26, 2014 |
| Last updated | Mar 1, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PSYD, HSPP |
| Practice address |
1500 W 38TH ST STE 32 Austin, TX 78731 (877) 750-3566 |
| Mailing address |
30 N MICHIGAN AVE STE 515 Chicago, IL 60602 |
| Other identifiers |
pending
· Medicaid (IN) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 3 | 1 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 2 | 1 | 6 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.